Remove integration with frameworks

Integrating with frameworks should be beyond the scope of Response. I plan to remove [`Response.bridge`](../tree/0.8.0#integration). It only [affects](../blob/master/response.js#L809-L822) `.fn.dataset` and `.fn.deletes` [now](../blob/0.8.0/CHANGELOG.md#080). Devs can still integrate on their own if they want to.
